ANIMAL PARASITES IN THE KIDNEY 407 



AMYLOID KIDNEY. 



This condition is of no practical importance except to the 

 student in pathology. It is not common in the small animals 

 and the symptoms are very obscure. 



TUMORS IN THE KIDNEY. 



In small animals the kidneys are not commonly affected 

 by primary tumor formations. There will be found: Sar- 

 comata, carcinomata, and adenomata, occasionally resulting 

 as secondary growths from some other organ or tissues. 

 Tuberculosis of the kidney has been noted in a few cases in 

 the dog. It may be either metastatic or urogenic in origin. 



It is not usually possible to recognize tumors during life. 

 They sometimes produce disturbance in kidney function 

 and may become metastatic. 



Treatment.— Treatment must be symptomatic. 



ANIMAL PARASITES IN THE KIDNEY. 



Dioctophyme renale {Eustrongyhis Gigas).— This is the 

 most common parasite found in the kidney of small animals 

 where it is confined almost exclusively to the dog. Its loca- 

 tion is usually in the pelvis of the kidney where in some cases 

 it produces marked clinical symptoms; in others but little 

 disturbance results considering the degree of pathological 

 change induced. 



Dioctophyme renale is a blood-red worm with a number 

 of fine transverse stripes, tapering slightly at the extremities. 

 The mouth is triangular in shape, and surrounded by six 

 small papillae. The male is 13 cm. to 40 cm. long, and 4 mm. 

 to 6 mm. in diameter; tail is obtuse, terminated by a patelli- 

 form, membranous, entire pouch without radise, and traversed 

 by a very slender, single spicule. Female, 20 cm. to 1 m. 

 long, and 5 mm. to 12 mm. in diameter; tail is obtuse and 

 slightly curved; a single ovary; vulva very near the mouth. 

 Ova ovoid and brownish, BN to 80 microns long, and 40 to 43 

 microns broad. (Neuman.) 



